So sorry I didn't see this earlier, Lisa. I can't say how it works with all publishers, but in my case, with Penguin, they ask for my input very early in the process. They ask things like, if I want a person on the cover, or just a place. What story elements do I want the cover to convey? I give them a few ideas to start with, and then they come back with a few mock ups for me to weigh in on. Sometimes they hit it first time out of the gate as with The Wishing Tide. And then sometimes, we go back to the drawing board, as we did with Summer at Hideaway Key and we get there on the second go. Penguin's cover team is really the best in the biz, as far as I'm concerned.